Heater



July 14, 1925. 1,545,858

v. SMITH HEATER FLLedv nay 12.. 1924 Patented July 14, 1925.

1 UNITED STATES.

VIDA SMITH, OF PORTLAND, OREGON.

HEATER.

Application filed May 1.2,

To all wh-0m 'it may concern: f e

l*Be it known that I, VIDA SMrrH, a citizen of the UnitedStates, and .aLresident of Portland, in the county vof Multnomah and State' of-,Oregoinwhose post-office address is 44th Street and 56th Avenue,have invented anew and'useful l-Ieater, of which the following is a specification.

This invention relates more particularly to devices for warming beds,etc.

An object of my invention is to provide an exceedingly simple andinexpensive heater for use in bed. f

A second object is to soconstructV my device that an ordinaryincandescent lamp may be used for a heating element.

A third object is to surround the light with air by enclosing it in anordinary fruit jar.

A fourth object is toV provide a thermostatic control for the heatingwhich will be actuated by the heat generated from the lamp rather thanthe flow of current through the device.

A fifth object is to provide a very simple adjustment for the thermostatso that any desired temperature can be secured providing it does notexceed 180 degrees Fah., which has been generally accepted asa safemaximum temperature.

I accomplish these results in the manner set forth in the followingspecification and illustrated in the accompanying drawing, in which:

Figure 1 is a side elevation of a fruit jar in which my device has beenattached. Figure 2 is a sectional view through the device. Figure 3 is asection taken along the line 3 3 in Figure 2. Y

Similar numbers of reference refer to the same parts throughout theseveral views.

Referring in detail to the drawing, I have illustrated the ordinaryglass Mason fruit jar 10 preferably of the small mouth variety, as theseare most numerous, and also because it limits the size of lamp that canbe employed. The device consists of a metal cylindrical shell 11 aroundwhich is placed a band clamp 12 secured by the bolt 13 and havingprojecting therefrom a plurality of radial arms 14 suiliciently long torest across the mouth of the jar 10. A screw cap 15 of the type havingits central portion cut away is employed to fasten the arms 14 to thejar 10. The end 16 of the cylinder 11 is threaded to receive the shank1924. Serial No. 712,714.

of the lampA globe 17, which may be of any available type, not evenexcepting the old style carbon lights which give olf a relatively largeamount of heat ink proportion to their light, and which are not easilybroken.`

In the cylinder 11 I have placed a troughshaped porcelain shell 18 whoseend 19 is provided with a groove 2O to receive the con- 65 tact point 21which engages the lamp 17. The screw 22 passes through the end 19 andunites the contact point 21 to the base 23 of the standard 24. The screw25 threads through the stand-ard 24 and is provided 70 with agroove 30in which is placed a con- 75 tact point 31 adapted to engage the centralelectrode in the socket 32 of an extension cord to which this device maybe attached. While a portion of a porcelain socket is illustrated, thissocket may be of any convenient type, preferably one equipped with akey. The screw 33 passes-through the member 31 and the end 29 into thestandard 34 to which is secured a laminated arm 35 by means of a'qcelt36 and the end of the 85 arm 35 engages thhof the screw 25 when thedevice is subjectedtqV a temperature below that which is indicatedibythe hand 26.

The operation of my device is as followszgco In order to attach mydevice to an ordinary fruit jar it is only necessary to screw the lamp17 in place and insert the device into a fruit jar sufficiently far tomake its arms 14 rest on the neck of the j ar 10. The 95 cap 15 is nowscrewed down into place and current supplied to the device by attachingit to an extension cord, as above suggested. The current flows throughthe shell 11 into the lamp and out through the arm 35 as 100 long as itis below a certain temperature, de.- pending upon the position of thehand 26.

As the temperature of the jar 10 and its contents begins to rise, due tothe accumulation of heat, the employment of an oversize lamp or an undueamount of bedding which would prevent the radiation of this heat, themem'bei` 35 is caused to bend, owing to the difference in expansion andcontraction of the materials of which it is made, and moves the end 37out of engagement with the screw 25 thereby breaking the Contact andstopresponds with the maximum temperature it is desired to secure Withinthe device. In this ease thethermostat -could he` dispensed with. Y

A bolt 38'seC-.ures the shell 18V to the member 11.V f Y t 'JI am awarethat warming pans and heat? ing devices of various typesjhave long beenconstructed, many of which have been disf carded owing to their highfirst cost,eXpen` Y1,545,858Y y Q. p-

Vsive renewals and the danger encountered in their use, as Well as highcurrent consumption for a given amount of comfort derived therefrom.Itherefore do not claim such devices broadly, but I do intend to Coverall such forms and modifications as fall fairly Within the appendedclaim.

I claim:

The combination of a fruit jar; a ringshaped ola-mpI placed across themouth of said jar, saidv clamp vhaving radiating i spokes; an openscrewcap adapted to hold therspoke ends'ag'ainst'the glass of said jar;V a tubular socket adapted -tol be held by said ring clamp; a lampplaeedin the inner end of said socket; a thermostat in said socket;

and means Yfor regulating said thermostat to vary the temperature atWhich the HOW of current to said lamp will be interrupted.

p VIDA SMITH.

